Bagasse-pulverizer and furnace-feeder



(No Model.) 5 sheets-sheet 1.

A. A1 an J.- J. HIBBARD.

I BAGASSE lPULVERIZER AND FURNAGE FEEDER.

No. 305,450. Taten-ted Sept. 23, 1884.

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owwf@ Attorney j (No Model.) 5 sheets-sheet 2.

A. A. @E J.`J. HIBBARD. VBAGASSE PULVERlZ-ER AND FURNAGE FEEDER.

ANo. 305,450. Patented sept. '23, 1884.

TJVESSES MM l IJVVENTOR (No Model.) .15 sheethsheet s.

A. A. & J. J. HIBBARD. EAGASSE EULVEELZEE AND EUENAGE EEEDEE.

No. 305,450. y -Patented Sept. 23, '1884.

WI TJV ESSES (No Model.) 5 Sheets-.Sheet 4.

4 A. A. E J. J. HIBBARD. BAGASSB PULVERIZBR AND FURNAGE FEEDER.

No. 305,450. Patentedf Sept. 23, 18811.`

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1 A. A. su J. J. HIBBARD.

BAGASVSE PULVBRIZER AND FURNACE FEEDER.

No. 305,450.' r Patented Sept. 23, 188.4..

N. PETERS. Plwln-ulhagnpher. wfnhi nnnnnnnn c.

ASHLEY A. rHIBBERD AND JOHN HIBBARD, OF DULUTH, MINNESOTA.

BAGAS'SE-PULVERIZER AND FURNACE-FEEDER. I

SPECIFICATION forming part ofLetters Patent No. 305,450, dated September23, 1884. Application filed June 9, 1884. (No model.)

To @ZZ whom it may concern.'

Be it known that we, AsHLEY A. HIBBERD and J. J. HIBBARD, of Duluth, inthe county of St. Louis and State of Minnesota, have invented certainnew and useful Improvements in Bagasselulverizers and Furnace-Feeders;

and we do hereby declare the following to be a' full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

Our invention relates to an improvement in devices for pulverizing andfeeding bagasse to furnaces, the object being to provide a device ofthis character which shall first compress the bagasse, and then cut orsaw it into small pieces, and nally to feed the prepared bagasse tothefurnace; and with these ends in view our invention consists in certainnovel features of construction andV combinations of parts, as will behereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure l is a view of our improvement inside elevation.

Fig; 2 is a top plan view. Fig. 3 isa view in front elevation. Fig. 4 isa view in section. Fig. 5 isa view showing the pulverizer and theAcompressor rollers and plates in their raised position.

Arepresents the base or foundation for the machine, built upon the topof the furnace B or to one side thereof, and formed of any desiredmaterial, and to which .are secured the brackets or bearings C, in whichare j ournaled the spindles D,carrying the crushing-rollers E, thespindles D being also provided with gearwheels F, the two lower of whichmesh with y the upper middle wheel. These rollers E are of any suitablesize, and are arranged as shown, one roller being located above theother two and in close proximity thereto. Between the ends of therollers and the bearings C are removably secured the shields G, eachprovided with an upper inclined side, a. To the top of the furnace, andinfront of the foundation A, are secured the uprights H, provided with atop cross-piece, b, to which are secured the bearings c, in which isjournaled a shaft or spindle, I, carrying a cylinder, K, provided withcutters L ruiming longitudinally. On the spindle'I, between the end ofthe cylinder and the bearings c, is loosely secured thelower end of theinclined trough I', the floor d of which extends within close'proximityto the cutter-knives L, the trough being` provided with thedownwardlyprojecting ends c, to which are secured the cross-piece f,extending upwardly to the under side of the floor d. The trough extendsrearwardly, a portion of its sides J being out away and formingshoulders g, adapted to rest on the lower ends of the shields G, andsupport the trough in its inclined position, the floor of said troughextending within a short distance of the lower forward roll, E. Bypivoting or loosely connecting the trough to the spindle I the rear endthereof may be raised and easy access to the rolls Ehad. If desired, theupper end of the trough may be weighted or provided with a suitablelock, in order to keep it in its lowered position.

To the sidesJ of the trough, nearv the upper rear ends thereof, arepivotally secured the arms M, the lower forward ends of which extendnearly to the cylinder K, and are co`n-` neeted by the compressor-plateN, the ends of which are cut away to allow it to fit down in between thesides J of the trough, the reduced ends 71, of the plate being adaptedto iit in recesses t, formed in the sidesJ of said trough, said plate,when lowered, resting close to the iioor d.

To the pivoted arms M are secured bearings k, in which is journaled aspindle, O,carry ing the compressor-roll l?, provided with longitudinalgrooves Z, the outer end of the spindie O being provided with agear-wheel, m,

adapted to mesh with a similar gear, n, secured to the outer end of aspindle, Q, jour-` naled in bearings o, secured to the sides J of thetrough. The spindle Q is provided with a roller, B, similar in form 'andconstruction to the roller l?, and adapted to project up through atransverse opening, r, formed in the door d of the trough, the upperedge of said roller B being adapted to rest in line with the upper faceof said floor d. The sides J of the trough are provided with recesses simme- I and fall into a suitable receptacle.

diately above the bearings o, in which ,are adapted to fit the bearings7c when the compressor-plate is lowered, and allow the rollers R and Pto approach within a short distance of each other. rlhe other end of thespindle Q is provided with a sprocket-wheel, S, around which passes achain, t, which latter also passes around a sprocket-wheel secured tothe end of the spindle D, carrying the lower forward roll, E, all ofaforesaid rollers turning in the direction of the arrows. A suitableconveyer or apron may be connected to the rollers E and the cane orsorghum carried to the rollers thereon, which after leaving the apronwill pass through said rollers E, and the moisture be thereby extracted,the rollers crushing the cane into a thin mass, after which it will passdown the floor d, between the rollers P and R and floor d and plate N,to the cutter-knives L on the cylinder K, the said rollers R and P andthe plates d and N firmly holding the cane or sorghum in place andsubjecting it to the action of the knives. After it has been groundfine, it will fall from the trough between the cylinder K and the lowerend of the floor d into a trough, T, placed immediately below andrunning parallel with the roll- -ers E, P, and R, the cross-piece fpreventing vthe cane from falling too far to the rear, the

rying sprocket-wheels U, around which passes a chain,V, provided atsuitable intervals with the cross-pieces a', adapted when the pulverizedbagasse falls into the trough to push it along to openings o, formed inthe bottom of the trough and leading into the furnace. The trough issupported on the boxes or spouts fw, through which the bagasse passesfrom the openings o, said spouts or boxes being providedwithslidinglidssaadapted,whendesired, to close the openings c andprevent the bagasse from passing into the furnace, in which event itwill issue from the end of the trough On the end of the spindle t, atthe end of the trough, is secured a gear-wheel or friction-clutch, asdesired, adapted to mesh with a similar wheel, y, secured to the end ofa shaft, W, running parallel with the trough and journaledin bearingssecured to the uprights H, and also prothe exact construction hereinshown and described, but consider ourselves at liberty to make suchchanges as vfairly fall within the spirit and scope of our invention.

Having fully described our invention, what we claimas new, and desire tosecure by Letters Patent, is-

l. The combination, with rollers for holding and feeding the bagasse tothe cutter, of a knife or knives adapted to cut the bagasse into nepieces, and means for automatically feeding it to the furnace,substantially as set forth.

2. The combination, with rollers for holding and feeding the bagasse tothe cutters, of

a knife orknives adapted to cut the bagasse into fine pieces, means forautomatically feeding it to the furnace, and means for regulating thefeed of the cut bagasse into the furnace, substantially as set forth.

3. The combination, with rollersfor holding and feeding the bagasse tothe cutters, of a pulverizer consisting of a floor, compressorrollers,and cutters, ya trough or other suitable receptacle placed below thecutter, and a p conveyer moving in said trough and adapted to feed thepulverized bagasse to the furnace, substantially as set forth.

4. The combination, with rollers for holding and feeding the bagasse tothe cutters, of an inclined floor pivotally secured at its lower end toan upright frame secured to the top of the furnace, the upper end of thefloor resting in close proximity to one of said rolls, compressor-rollssecured to the floor, a cylinder provided with cutter-knives, and meansfor automatically feeding the bagasse to the furnace, substantially asset forth.

5. The combination, with compressing-rollers arranged as described, of atrough the sides of which extend above and below the IOO lloor, holdingand feeding rolls, one of which cle placed below the cutter, andprovided onits bottom with openings leading into the furnace, and achain moving in said trough, substantially as set forth. A

7. The combination, with crushing-rolls, a cutter, and a trough or othersuitable receptacle placed below the cutter and provided with openingsin the bottom, of boxes placed below the trough and said openings andleading into a furnace, lids adapted to close the openings, a chainprovided with cross-pieces and adapted to travel around sprocket-wheelssecured to spindles journaled in the sides ofthe trough.

8. The combination, with the rollers E, situated above a furnace, of thetrough l', the

IIO

holding and feeding rollers, the cutter, trough In testimony `Whereof Wehave signed this 1o T, sprooketwheels U, and chain V,substztnspeeioation in the presence of two subsoribtially its set forth.ing witnesses.

9. The combination, with the rollers E, sit- 5 uated above the furnace,ofthe pulverizer I', trough T, sprocket-wheels U, chain V, boxes ASHLEYA. HIBBERD. JOHN J.. HIBBARD.

w, and lids x, all of the above parts com- Witnesses: bined and adaptedto operate substantially as LUTHER MENDENHALL. set forth. C. E.BosTWroK.

